The effect of Arctic sea-ice extent on the absorbed (net) solar flux at the surface, based on ISCCP-D2 cloud data for 1983–2007
We estimate the effect of the Arctic sea ice on the absorbed (net) solar flux using a radiative transfer model. Ice and cloud input data to the model come from satellite observations, processed by the International Satellite Cloud Climatology Project (ISCCP) and span the period July 1983–June 2007....
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ftdoajarticles:oai:doaj.org/article:29e64a6fc3434a3eafd12add8b6aa358 2023-05-15T13:11:05+02:00 The effect of Arctic sea-ice extent on the absorbed (net) solar flux at the surface, based on ISCCP-D2 cloud data for 1983–2007 C. Matsoukas N. Hatzianastassiou A. Fotiadi K. G. Pavlakis I. Vardavas 2010-01-01T00:00:00Z https://doaj.org/article/29e64a6fc3434a3eafd12add8b6aa358 EN eng Copernicus Publications http://www.atmos-chem-phys.net/10/777/2010/acp-10-777-2010.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 1680-7316 1680-7324 https://doaj.org/article/29e64a6fc3434a3eafd12add8b6aa358 Atmospheric Chemistry and Physics, Vol 10, Iss 2, Pp 777-787 (2010) Physics QC1-999 Chemistry QD1-999 article 2010 ftdoajarticles 2022-12-30T21:39:53Z We estimate the effect of the Arctic sea ice on the absorbed (net) solar flux using a radiative transfer model. Ice and cloud input data to the model come from satellite observations, processed by the International Satellite Cloud Climatology Project (ISCCP) and span the period July 1983–June 2007. The sea-ice effect on the solar radiation fluctuates seasonally with the solar flux and decreases interannually in synchronisation with the decreasing sea-ice extent. A disappearance of the Arctic ice cap during the sunlit period of the year would radically reduce the local albedo and cause an annually averaged 19.7 W m −2 increase in absorbed solar flux at the Arctic Ocean surface, or equivalently an annually averaged 0.55 W m −2 increase on the planetary scale. In the clear-sky scenario these numbers increase to 34.9 and 0.97 W m −2 , respectively. A meltdown only in September, with all other months unaffected, increases the Arctic annually averaged solar absorption by 0.32 W m −2 . We examined the net solar flux trends for the Arctic Ocean and found that the areas absorbing the solar flux more rapidly are the North Chukchi and Kara Seas, Baffin and Hudson Bays, and Davis Strait. The sensitivity of the Arctic absorbed solar flux on sea-ice extent and cloud amount was assessed. Although sea ice and cloud affect jointly the solar flux, we found little evidence of strong non-linearities. Article in Journal/Newspaper albedo Arctic Arctic Ocean Baffin Chukchi Davis Strait Ice cap Sea ice Directory of Open Access Journals: DOAJ Articles Arctic Arctic Ocean Hudson |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Physics QC1-999 Chemistry QD1-999 |
spellingShingle |
Physics QC1-999 Chemistry QD1-999 C. Matsoukas N. Hatzianastassiou A. Fotiadi K. G. Pavlakis I. Vardavas The effect of Arctic sea-ice extent on the absorbed (net) solar flux at the surface, based on ISCCP-D2 cloud data for 1983–2007 |
topic_facet |
Physics QC1-999 Chemistry QD1-999 |
description |
We estimate the effect of the Arctic sea ice on the absorbed (net) solar flux using a radiative transfer model. Ice and cloud input data to the model come from satellite observations, processed by the International Satellite Cloud Climatology Project (ISCCP) and span the period July 1983–June 2007. The sea-ice effect on the solar radiation fluctuates seasonally with the solar flux and decreases interannually in synchronisation with the decreasing sea-ice extent. A disappearance of the Arctic ice cap during the sunlit period of the year would radically reduce the local albedo and cause an annually averaged 19.7 W m −2 increase in absorbed solar flux at the Arctic Ocean surface, or equivalently an annually averaged 0.55 W m −2 increase on the planetary scale. In the clear-sky scenario these numbers increase to 34.9 and 0.97 W m −2 , respectively. A meltdown only in September, with all other months unaffected, increases the Arctic annually averaged solar absorption by 0.32 W m −2 . We examined the net solar flux trends for the Arctic Ocean and found that the areas absorbing the solar flux more rapidly are the North Chukchi and Kara Seas, Baffin and Hudson Bays, and Davis Strait. The sensitivity of the Arctic absorbed solar flux on sea-ice extent and cloud amount was assessed. Although sea ice and cloud affect jointly the solar flux, we found little evidence of strong non-linearities. |
format |
Article in Journal/Newspaper |
author |
C. Matsoukas N. Hatzianastassiou A. Fotiadi K. G. Pavlakis I. Vardavas |
author_facet |
C. Matsoukas N. Hatzianastassiou A. Fotiadi K. G. Pavlakis I. Vardavas |
author_sort |
C. Matsoukas |
title |
The effect of Arctic sea-ice extent on the absorbed (net) solar flux at the surface, based on ISCCP-D2 cloud data for 1983–2007 |
title_short |
The effect of Arctic sea-ice extent on the absorbed (net) solar flux at the surface, based on ISCCP-D2 cloud data for 1983–2007 |
title_full |
The effect of Arctic sea-ice extent on the absorbed (net) solar flux at the surface, based on ISCCP-D2 cloud data for 1983–2007 |
title_fullStr |
The effect of Arctic sea-ice extent on the absorbed (net) solar flux at the surface, based on ISCCP-D2 cloud data for 1983–2007 |
title_full_unstemmed |
The effect of Arctic sea-ice extent on the absorbed (net) solar flux at the surface, based on ISCCP-D2 cloud data for 1983–2007 |
title_sort |
effect of arctic sea-ice extent on the absorbed (net) solar flux at the surface, based on isccp-d2 cloud data for 1983–2007 |
publisher |
Copernicus Publications |
publishDate |
2010 |
url |
https://doaj.org/article/29e64a6fc3434a3eafd12add8b6aa358 |
geographic |
Arctic Arctic Ocean Hudson |
geographic_facet |
Arctic Arctic Ocean Hudson |
genre |
albedo Arctic Arctic Ocean Baffin Chukchi Davis Strait Ice cap Sea ice |
genre_facet |
albedo Arctic Arctic Ocean Baffin Chukchi Davis Strait Ice cap Sea ice |
op_source |
Atmospheric Chemistry and Physics, Vol 10, Iss 2, Pp 777-787 (2010) |
op_relation |
http://www.atmos-chem-phys.net/10/777/2010/acp-10-777-2010.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 1680-7316 1680-7324 https://doaj.org/article/29e64a6fc3434a3eafd12add8b6aa358 |
_version_ |
1766245878138404864 |